Add a binding and a driver for the Samsung AMS644VK04, a 6.44 inch 1080x2400 MIPI DSI command mode AMOLED panel with DSC, used in the OnePlus Nord (SM7250).
The driver describes only the 90 Hz mode for now; the panel also does 60 Hz, which needs a way to pick the mode from the display pipeline that I did not want to invent here. One question for the reviewers: the DSC picture parameter set is the one the downstream driver sends (DCS 0x9e, 88 bytes). It differs from what drm_dsc_pps_payload_pack() computes for the same geometry, mainly first_line_bpg_offset (15 downstream, 12 from the helper) and the last rate control ranges. The msm DSI host fills the shared drm_dsc_config with the helper values, so the encoder and the panel decoder use different rate control parameters; the picture looks correct. If you prefer, I can switch to the helper PPS once I have tested that the panel accepts it. Tested on a OnePlus Nord with the msm DSI host (a 7.3-rc7 based tree), including suspend and resume. The SoC devicetree nodes are not part of this series. Signed-off-by: Ishu Brar <[email protected]> --- Ishu Brar (2): dt-bindings: display: panel: Add Samsung AMS644VK04 drm/panel: Add Samsung AMS644VK04 panel driver .../bindings/display/panel/samsung,ams644vk04.yaml | 76 +++++ MAINTAINERS | 7 + drivers/gpu/drm/panel/Kconfig | 15 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-samsung-ams644vk04.c | 373 +++++++++++++++++++++ 5 files changed, 472 insertions(+) --- base-commit: cf5d8e390e2ac2cfa24a50645efdbb9f0eebe65f change-id: 20261023-panel-ams644vk04-ef8b2b24e222 Best regards, -- Ishu Brar <[email protected]>
